AI Article Synopsis
- The rising use of silver raises environmental and health concerns, requiring sensitive methods to detect trace amounts of silver ions (Ag).
- A new SPR sensor has been developed using MoS-intercalated NiAl-layered double hydroxide, significantly improving the sensitivity for Ag detection.
- This innovative sensor achieves a high sensitivity of 254.75 nm/μg/L and can detect Ag at concentrations as low as 2.8 pM, while also demonstrating excellent repeatability and stability in real-world samples.
Article Abstract
The widespread use of silver raises concerns about environmental and health risks, necessitating highly sensitive detection methods for trace silver ions (Ag). Surface plasmon resonance (SPR) sensors offer benefits like label-free detection and rapid response, but their sensitivity for Ag detection is limited due to weak ion adsorption. Here, we developed an SPR sensor with MoS-intercalated NiAl-layered double hydroxide (LDH) as the adsorption layer of Ag to enhance detection sensitivity. Our sensor achieves a sensitivity of 254.75 nm/μg/L and detects Ag at a low concentration of 2.8 pM, outperforming various existing sensors. It also shows excellent repeatability, long-term stability, and selectivity, proving effective in real-world environmental samples. This work advances high-performance SPR sensors for heavy metal ion detection.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11435706 | PMC |
| http://dx.doi.org/10.3390/s24185973 | DOI Listing |
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